(a) Calculate the momentum of a photon having a wavelength of 2.50 μm . (b) Find the velocity of an electron having the same momentum. (c) What is the kinetic energy of the electron, and how does it compare with that of thephoton?

(a) Calculate the momentum of a photon having a wavelength of 2.50 μm . (b) Find the velocity of an electron having the same momentum. (c) What is the kinetic energy of the electron, and how does it compare with that of thephoton?

University Physics Volume 3

17th Edition

ISBN:9781938168185

Author:William Moebs, Jeff Sanny

Publisher:William Moebs, Jeff Sanny

Chapter6: Photons And Matter Waves

Section: Chapter Questions

Problem 109P: What is the de Brogue wavelength of a proton whose kinetic energy is 2.0 MeV? 10.0 MeV?

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